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I've got the same understanding - I asked my ophthalmologist about it as well because my vision is already quite bad and I'm a computer engineer.

For breaks, she recommended the "20/20/20 rule" - focus your eyes on something at least 20 feet away, for 20 seconds, every 20 minutes of screen usage.

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Yes, I've gotten that recommendation as well. Apparently more natural light exposure may also decrease the risk for nearsightedness. Having a window near my computer monitor makes it easy to remember to look outside whenever I'm not actively looking at the screen.

I think there is a nuance in reducing screen time versus increasing natural light exposure.

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